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    DEVELOPING COMPOSITION FOR ELECTROSTATIC CHARGE IMAGE
    33.
    发明专利
    DEVELOPING COMPOSITION FOR ELECTROSTATIC CHARGE IMAGE 失效

    公开(公告)号：JPS63202761A

    公开(公告)日：1988-08-22

    申请号：JP3440587

    申请日：1987-02-19

    Applicant: FUJI XEROX CO LTD ,  TORAY INDUSTRIES

    Inventor： SUZUKI CHIAKI ,  MATSUMURA YASUO ,  AOKI TAKAYOSHI ,  NAKAOKA KENJI ,  MATSUKUMA YOSHIHISA

    IPC: G03G9/097

    Abstract: PURPOSE:To improve the dispersibility of the toner, and to reduce the scattering of electrification by incorporating a specific metal complex of cyclohexanone oxim in the titled composition, as the electrostatic charge controller to form the toner. CONSTITUTION:The titled composition contains the metal complex of cyclohexanone oxim shown by the formula as the charge controller. In the formula, R1 and R2 are each hydrogen atom, a substd. or an unsubstd. alkyl, aryl or aralkyl group. The metal complex compd. of the cyclohexanone oxim contains for example, 2-amino hexanone oxim, 2-methylamino hexanone oxim or 2-benzyl aminohexanone oxim, etc. as a ligand, and contains for example, iron, cobalt, nickel, chromium, manganese zinc, etc., as a metal. Thus, as the toner contains the cyclohexanone oxim derivative, the rising speed of the electrification increases, and the scattering of the frictional electrification is reduced.

    METHOD FOR PURIFYING O-METHYLACETOPHENONE
    34.
    发明专利
    METHOD FOR PURIFYING O-METHYLACETOPHENONE 失效

    公开(公告)号：JPS62277337A

    公开(公告)日：1987-12-02

    申请号：JP11917386

    申请日：1986-05-26

    Applicant: TORAY INDUSTRIES

    Inventor： NAKAJI KENJI ,  NAKAOKA KENJI

    IPC: C07C49/78 ,  C07C45/00 ,  C07C45/78 ,  C07C67/00

    Abstract: PURPOSE:To remove by-products simply and to obtain the titled compound useful as a raw material for drugs and agricultural chemicals in high purity, by reacting O-toluic acid and acetic acid or acetone, inexpensive raw materials, in a gaseous phase and treating the prepared crude reaction product with sulfuric acid. CONSTITUTION:O-Toluic acid is reacted with acetic acid or acetone in a gaseous phase, the prepared crude O-methylacetophenone is mixed with 5-50wt%, preferably about 15-40wt% based on the crude reaction product of sulfuric acid, preferably 60-100wt%, especially about 70-90t% concn. sulfuric acid at 0 deg.C-100 deg.C, preferably about room temperature, allowed to stand and treated. Then, the treated blend is separated into a sulfuric acid layer and an oil layer and the aimed compound is obtained from the oil layer. The molar ratio of the O-toluic acid and acetic acid or acetone of the raw materials fed is preferably about 1:1-10 and an inert gas such as carbon dioxide, etc., may exist besides the raw materials.

    PRODUCTION OF HIGH-PURITY 6-NITRO-3-CHLOROBENZOIC ACID
    36.
    发明专利
    PRODUCTION OF HIGH-PURITY 6-NITRO-3-CHLOROBENZOIC ACID 失效

    公开(公告)号：JPS624249A

    公开(公告)日：1987-01-10

    申请号：JP14018885

    申请日：1985-06-28

    Applicant: TORAY INDUSTRIES

    Inventor： NAKAJI KENJI ,  NAKAOKA KENJI

    IPC: C07C201/16 ,  C07B63/00 ,  C07C67/00 ,  C07C201/00 ,  C07C205/58 ,  C07C205/59

    Abstract: PURPOSE:To obtain the titled compound having high purity, by dissolving crude 6-nitro-3-chlorobenzoic acid in an alkaline aqueous solution, adding an acid to the solution to effect the fractional crystallization, discarding the crystals precipitated in the initial stage and containing a large amount of impurity, and further adding an acid to the solution. CONSTITUTION:Crude 6-nitro-3-chlorobenzoic acid containing 2-nitro-3-chloro benzoic acid as main impurity and produced by nitrifying 3-chlorobenzoic acid is dissolved in an alkaline aqueous solution (preferably an aqueous solution of sodium hydroxide, potassium hydroxide, calcium hydroxide etc.), and an acid (preferably sulfuric acid, hydrochloric acid, nitric acid, etc.) is added to the solution. The amount of the acid is preferably 1-3 equivalent based on the acidic impurity contained in the aqueous solution. The crystals containing a large amount of impurity and precipitated in the initial stage are discarded by fractional crystallization. The remaining solution is further added with an acid to obtain the titled compound in high purity. The total amount of the acid added in the above process is about 1.0-1.2 equivalent based on the alkali used in the reaction.

    PRODUCTION OF P-XYLYLENE GLYCOL
    37.
    发明专利
    PRODUCTION OF P-XYLYLENE GLYCOL 失效

    公开(公告)号：JPS6032737A

    公开(公告)日：1985-02-19

    申请号：JP13763583

    申请日：1983-07-29

    Applicant: TORAY INDUSTRIES

    Inventor： FURUYA MASAAKI ,  NAKAOKA KENJI

    IPC: C07C29/124 ,  B01J27/00 ,  B01J27/232 ,  C07B61/00 ,  C07C27/00 ,  C07C33/26 ,  C07C67/00

    Abstract: PURPOSE:To produce titled compound useful as a raw material of polyesters, resin additives, etc., in high purity, by hydrilyzing p-xylylen dichloride with a specific amount of water in the presence of an alkali metal (bi)carbonate. CONSTITUTION:p-xylylne dichloride is heated in 11-25 times weight of water base on p-xylylene dichloride in the presence of 1-1.3mol of an alkali metal carbonate or 2-2.5mol of an alkali metal bicarbonate based on 1mol of p- xylylene dichloride to obtain the objective compound in high purity suppressing the by-production of a benzyl ether-type dimer, oligomer, etc. The reaction is preferably carried out in the presence of a small amount of a hydrophobic organic solvent which is a good solvent of p-xylene dichloride and capable of forming an azeotropic mixture with water (e.g. toluene), thereby dissolving the p-xylylene dichloride crystal deposited at the upper part of the reactor by the reflux of the organic solvent, and preventing the deposition of the crystal.

    PREPARATION OF M-NITROBENZOIC ACID
    38.
    发明专利
    PREPARATION OF M-NITROBENZOIC ACID 失效

    公开(公告)号：JPS57181040A

    公开(公告)日：1982-11-08

    申请号：JP6427981

    申请日：1981-04-30

    Applicant: TORAY INDUSTRIES

    Inventor： TORIGATA HAJIME ,  NAKAOKA KENJI

    IPC: C07B61/00 ,  B01J27/00 ,  B01J27/08 ,  B01J31/00 ,  B01J31/02 ,  C07C67/00 ,  C07C201/00 ,  C07C205/59

    Abstract: PURPOSE:To prepare the titled compound useful as a raw material of pesticides, pharmaceuticals, dyes, etc., in high rate of reaction and purity, without using a solvent, by oxidizing m-nitrotoluene in the presence of a specific catalyst and a specific amount of the reaction product. CONSTITUTION:The objective compound can be prepared by oxidizing m-nitrotoluene with a gas containing molecular oxygen, in the presence of a catalyst composed mainly of cobalt, manganese and bromine and in the copresence of m-nitrobenzoic acid at 120-200 deg.C, without using a solvent. The amount of m-nitrobenzoic acid in the reaction mixture is >=20wt% based on m-nitrotoluene. The compounds of cobalt and manganese used as the components of the catalyst are preferably bromide, hydroxide, carbonate, nitrobenzoate, etc., and the bromine compound is preferably bromine, hydrogen bromide, bromoacetic acid, benzyl bromide, etc.

    PREPARATION OF BIPHENYLDICARBOXYLIC ACID
    39.
    发明专利
    PREPARATION OF BIPHENYLDICARBOXYLIC ACID 失效

    公开(公告)号：JPS5716831A

    公开(公告)日：1982-01-28

    申请号：JP9072380

    申请日：1980-07-04

    Applicant: TORAY INDUSTRIES

    Inventor： NAKAOKA KENJI ,  HASEGAWA SAKIE

    IPC: C07C63/33 ,  B01J27/00 ,  B01J27/08 ,  C07C51/00 ,  C07C51/215 ,  C07C67/00

    Abstract: PURPOSE:To obtain the titled compound useful as a raw material for a high polymer in high purity, by oxidizing dicyclohexylbiphenyl as a raw material to be synthesized inexpensively and easily separable from other by-products with a molecular oxygen-containing gas in the presence of a catalyst. CONSTITUTION:Dicyclohexylbiphenyl as a raw material is brought into contact with a molecular oxygen-containing gas, preferably air, in the presence of a catalyst consisting of cobalt and/or manganese and bromine in a solvent of acetic acid at 100-250 deg.C under 10-30atm, to give the desired compound. The above-mentioned raw material is synthesized easily by reacting biphenyl with a reagent, e.g., cyclohexane halide, to convert into cyclohexyl, in a solvent, e.g., carbon disulfide, etc. in the presence of a Fridel-Crafts catalyst, e.g., iron chloride, etc.

    PREPARATION OF TEREPHTHALIC ACID
    40.
    发明专利
    PREPARATION OF TEREPHTHALIC ACID 失效

    公开(公告)号：JPS55143934A

    公开(公告)日：1980-11-10

    申请号：JP5090679

    申请日：1979-04-26

    Applicant: TORAY INDUSTRIES

    Inventor： MORIMOTO HIROSHI ,  TORIGATA HAJIME ,  NAKAOKA KENJI

    IPC: C07C63/26 ,  B01J23/00 ,  B01J23/74 ,  B01J31/00 ,  B01J31/04 ,  C07B61/00 ,  C07C51/00 ,  C07C51/265 ,  C07C67/00

    Abstract: PURPOSE:p-Xylene is oxidized in liquid phase in the presence of a reaction promotor, etc. to give slurry which is heated to separate terephthalic acid where the mother liquor is oxidized and subsequently recycled to the oxidation process to increase the purity of the terephthalic acid. CONSTITUTION:p-Xylene is oxidized in liquid phase with O2-containing gas in acetic acid at 110-140 deg.C in the presence of a catalyst, e.g. Co compound, and a reaction promotor, e.g. paraldehyde, acetaldehyde, etc. Maintaining the temperature higher than the reaction temperature by 5 deg.C, terephthalic acid is separated from the obtained oxidized slurry. In this process, the residual mother liquor obtained after the separation of terephthalic acid is oxidized with O2-containing gas in the presence of the reaction promotor to transform the harmful substance to the substance which does not decrease the quality of terephthalic acid. The substance obtained is recycled to give high quality terephthalic acid conveniently in an industrial scale.

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